Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Different Methodologies in Sustainable Urban Education.1810267310.21608/bfemu.2020.102673ENAsmaa RamadanElantaryResearcher at Architectural Dept. Faculty of Engineering- Mansoura UniversityMohamed TahaEl-AzabProfessor and the Head of Architectural Dept. Faculty of Engineering- Mansoura UniversityMohamed EsmatEl AttarProfessor of Architecture
Mansoura University and British University in EgyptJournal Article20140616<strong>The methodology is the learning styles and teaching methods, which should look at it on the basis that it is separate from the scientific article or the learner and the teacher they are considered as an important factor underpinning the process of sustainable education, and different teaching methods (methodology) according to the different decision and the goal of it.</strong><br /><strong> There are many methodologies can be used to enhance the process of sustainability in urban education. The most important of these methodologies are: lecture, system integrated thinking, education in deep, active learning, experiential learning, cooperative learning, self-learning, case study, learning-based verification and research, theory of multiple intelligence, training, continuing professional development, enable learners, information and communication technology, management behavior of learners. This paper will study in details these methodologies to illustrate the usefulness as well as displays the most important characteristics of the change towards sustainability. The study concludes a set of recommendations towards the sustainability in urban planning education.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713The Past and the Present of the Arabian Residence "A Comparative Case Study of the Traditional and Modern Housing of Sana’a City as an Approach to the Originality of Modern Architecture".92610267510.21608/bfemu.2020.102675ENAhmed Mohamed AhmedAlhazmiAssociate professor, Architecture
Qassim University-Saudi Arabia
Associate professor, Architecture & Housing
Sana'a University- Faculty of EngineeringJournal Article20140313<strong>Arab cities are generally dominated by contemporary mixed architectural and urban styles that are not compatible with our environment and our social and humanity requirements, as recently during this period, several attempts began to create Architectural styles compatible with the present era, most of these attempts are evidenced by efforts of adding urban heritage features to contemporary buildings for the purpose of expressing originality by the employment of some traditional elements, therefore, the study has focused on the study of Arabian architecture exemplars in general and that of Yemen in particular, by comparing traditional and modern residents in the city of Sana'a.</strong><br /> <strong> As a result of the developments that have occurred in our modern era, there was a change in the ideas, concepts and modern notions, resulting in the diversification of architecture in the Arab world in general and in the city of Sana’a for more precision, therefore, architecture and Urbanism in general are no more recently compatible with our environment. Newly introduced building materials that are not compatible with the environment, henceforth cities expanded horizontally and scattered in all directions and on all axes, enough attention is not, therefore, found in regards to the establishment and execution of urban planning laws and the organization of modern neighborhoods, which resulted in the negative impact of the environmental and urban residents compared to that of the past.</strong><br /> <strong>The residential environment weather traditional or modern is the most important components of the urban environment, as the residential environment in the city of Sana'a is generally influenced by the culture of the society and their customs and traditions.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713A Comparative Study to Reduce the Construction Costs of the Building, Case Study: Class Room of a School.273510267710.21608/bfemu.2020.102677ENMohamed Esmat HamedEl-AttarProfessor of Architecture, Department of Architecture, Mansoura UniversityAdelAbd-AllahGeneral Director of Inspection., Authority for Educational BuildingsJournal Article20140803<strong>Looking at the building from the economic point of view we must study the factors that control the prices of materials used in its production. The research discusses the possibility of reducing the costs of constructing the building on three approaches; design: both architectural or structural design in addition to design complementary and maintenance work; raw materials which are the major factor in the cost, even if they cannot reduce the price, but can be reduced by use, labor which is the factor that can be minimized by the development of the construction industry. The research aims through a set of preferences to reduce the construction cost of a class room unit of a school building. The research concluded that it could reduce the cost of constructing a class room unit significantly by architectural elements and the choice of architectural proportions of the class room so that reduces the perimeter, and it reduces the cost of the raw materials and labor used during construction.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Statistical Analysis of the Factors Affecting the Problem of Urban Sprawl on Agricultural Lands (Case Study: Assuit Governorate Villages).366110267910.21608/bfemu.2020.102679ENMahmood MohamedAbdel-KaderDemonstrator, Dep. of Architectural Engineering
Faculty of Engineering Assuit UniversityJournal Article20140813<strong> Urban sprawl on agricultural lands considers one of the permanent problems, which face all the governments that govern Egypt last decades, especially with the fact that all urban areas distributed on 6% of all Egyptian territories accompanied with accelerated population growth. Therefore, this research aims to study the relationship between the most important demographic and spatial characteristics (population-populated area- population density-proximity) which effect on the problem of urban sprawl on agricultural lands by the statistical methods, and it aims to categorize all the urban sprawl on these villages.</strong><br /><strong> Urban sprawled areas for more than 100 village in Assuit province were measured based on the satellite images of all Egyptian villages which taken in 1986 and 2006. Statistical Assumptions were tested before using the correlation analysis (Spearman rho test) for the dataset. Results show that urban sprawled areas on agricultural lands of the dataset (101 villages in Assuit province) were 114 fadans per year during the period 1986-2006, and the results showed that there was a relationship between the study variables and urban sprawl on agricultural lands. Moreover, it showed that there was more than one category of urban sprawl in these villages. The conclusion made was that decision makers must put these categories in consideration so they can deal with each category by suitable package of laws and developing projects to solve this problem. </strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713A Hydraulic Study of Sharp Crested Weir with Orifices.11310268210.21608/bfemu.2020.102682ENM. M.IbrahimLecturer, Irrigation And Hydraulics Engineering Department
, Shoubra faculty of engineering, Benha University, PO box 11629, Shoubra, EgyptJournal Article20140428<strong>This research investigates experimentally the flow over sharp crested weir and through rounded orifices. Nine symmetrical orifices of 3 cm diameter each were made in the weir to convey much water in the downstream direction. The orifices were distributed as 3 equals spaced rows by three equal spaced columns. Twenty three (23) experimental runs were conducted. Nine weir models were used. This study aimed to evaluate the effect of discharge, tail gate water level, orifices number, and locations on the discharge coefficient and length of hydraulic jump. Results were analyzed and graphically presented. The results of flow over the weir with orifices were compared with those of the weir without orifices. It was dedicated that there is a large difference between them. In case of weir with opening it was found that the discharge coefficient was higher than the weir without openings. The jump length was inversely proportional to the number of openings. Multiple regression equations based on energy principal and dimensional analysis theory were developed for computing the discharge coefficient and hydraulic jump length over sharp crested weir with orifices. The developed equations were compared to the experimental data. The comparison confirms a good reliability and high accuracy.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Effect of Ruptures in some Cables on the Static and Dynamic Analysis of Cable-Stayed Bridges.143210268510.21608/bfemu.2020.102685ENM.NaguibStructural Eng. Dept., Mansoura University, Mansoura, EgyptS.El BaglatyStructural Eng. Dept., Mansoura University, Mansoura, EgyptM.ShaabanStructural Eng. Dept., Mansoura University, Mansoura, EgyptJournal Article20140603<strong> This paper presents the study of cables rupture effect on cable-stayed bridges. The static and dynamic analysis for cable stayed bridge having five spans considering single plane of cables in harp shape is carried out. This study is concerned about bridges having five spans with 140 ms for exterior spans and 280 ms for the three interior spans. The total length of the bridge is 1120 ms. it’s carried out for harp bridges. The own weight of all structural elements, and traffic load including impact are taken into account. In the both static and dynamic analysis, the energy method, based on the minimization of the total potential energy (TPE) of structural elements, via conjugate gradient technique is used. The procedure is carried out using the iterative steps to acquire the final configurations. Then, Dynamic Analysis is carried out for the most critical case to confirm the obtained results from static analysis. All prepared computer programs in FORTRAN language for this work and their verifications is written by [1]. All results showed that, the most critical case is the rupture of the outer cable (longest one). The conclusions, which have been drawn from the present work, are outlined.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Cost Analysis of Using some Types of Polymers to Asphalt Concrete Mixtures.334610268610.21608/bfemu.2020.102686ENAhmed MohamadyAbd-AllahAssistant Professor , Public Works Engineering Department , Faculty of Engineering, Zagazig UniversityMohamed Ibrahim El-sharkawiAttiaLecturer , Public Works Engineering Department , Faculty of Engineering, Zagazig UniversityMahmoud Fathy Abd-ElmaksoudKhamisLecturer , Public Works Engineering Department , Faculty of Engineering, Zagazig UniversityEslam Magdy MohammedDeef-AllahGraduate Research Assistant, Public Works Engineering Department , Faculty of Engineering, Zagazig UniversityJournal Article20140604<strong>Attention has been increasing towards the use of polymer modified asphalt, because conventional asphalt mixtures cannot resist the high axle loads and tire pressures. The main objective of this research was to evaluate economic feasibility of adding several types of polymers on asphalt mixtures in Egypt. Study program involved four steps. The first step was presentations and discussions results of lab work. The second step was estimating the cost per one cubic meter of asphalt mixtures using four types of polymers. The third step was calculating pavement life of virgin and modified asphalt concrete mixtures using Mechanistic Empirical Pavement Design Guide (MEPDG) program. The fourth step was calculating cost/benefit ratio. It was found that using polymers increased pavement life for all different types of used polymers. HDPE gave the best improvement in percent increase in design life followed by novolac followed by PVC and then waste plastic bags. The minimum cost was obtained by waste plastic bags, followed by HDPE, followed by PVC and then novolac. The minimum cost per benefit ratio obtained by waste plastic bags followed by HDPE followed by PVC and then novolac.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Evaluation Measures of Pavement Maintenance Effectiveness.475910268710.21608/bfemu.2020.102687ENFathy M.MandeelPh.D.Associated Professor,
Faculty of Engineering,
Zagazig University,
Zagazig, EgyptAlaa M.AliPh.D.Assistant Professor,
Misr High Institute for
Engineering & Technology,
Mansoura, EgyptJournal Article20140616<strong>The main objective of pavement maintenance preservation is to extend pavement life and improve its performance system in an efficient and cost-effective way. The evaluation process of maintenance effectiveness includes selecting a suitable effectiveness measure, determining its significant value and expressing such measured values as a function of the performance of pavement maintenance alternatives.</strong><br /><strong> This paper describes three measures in which response variables for maintenance effectiveness models can be formulated to provide and assess the effectiveness of pavement maintenance and successive maintenance alternatives. These effectiveness measurements are; deterioration reduction level, performance jump, and deterioration rate reduction. The paper presents computational methods and terms identified from past studies and have an effect on the considered measures.</strong><br /><strong> The paper concluded a mathematical formula for computing each measure. It also presented correlations between each pair of the three said measures. In addition, the paper indicates the significance of the type of each maintenance alternative, its performance prediction model and the successive maintenance type on any measure computation.</strong><br /><strong> Finally, the application of the three measures was applied on different maintenance alternatives as a case study to define the application and implications of the measures on the computation of maintenance effectiveness and successive maintenance alternatives. The results indicate that any of the above measures can be used for maintenance effectiveness evaluation, and the best successive maintenance alternatives are found to be directed toward major maintenance with higher performance than other minor maintenance as defined hereinafter.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Extracting of Shoreline in Baltim Beach Using Remote Sensing and Global Positioning System (GPS) Techniques.607310268910.21608/bfemu.2020.102689ENBahaa A.El-SharnoubyProf., of Harbor Engineering, Faculty of Engineering, Alexandria University, EgyptKasem Salah Abd El WahabEl AlfyProf. of Hydraulics, Mansoura University, Dean of Mansoura High Institute of Eng. And TechnologyOsami S.RagehProf., of Harbor Engineering, Faculty of Engineering, Mansoura University, EgyptMohammed M.El-SharabasyPh.D. Student, Irrigation & Hydraulics Dept., Faculty of Engineering, Mansoura University, Egypt.Journal Article20140828<strong>Baltim beach is one of the most important public beaches fronting the central sector of the Nile Delta, Egypt. Many site and region specific shoreline change monitoring programs use labor and time intensity methodologies for data collection. The collection, compilation, and analysis of this data can take years. This study presents a low cost methodology for quantifying regional shoreline change using Landsat-8 Operational Land Imager (OLI) data. This paper compares multi-spectral imagery from landsat-8 with that of the Global Positioning System (GPS) surveying techniques when used to extract shoreline for Baltim beach. The latest in the Landsat series of satellites was launched February 11, 2013. Image processing techniques have been carried out to enhance the image resolution by the layer stack function using ERDAS Imagine, 2013. The best results from multispectral data were obtained using remote sensing and Geographic Information System (GIS) based on a combination of histogram thresholding and band ratio techniques. Kinematic GPS measurements are made with two GPS receivers, one of which is fixed (base station) located over a known fixed point and the other is moving on shoreline (rover). The data collected by the rover are processed and corrected after taking measurements then post-processed to achieve very high accuracy (sub meters)using Lecia Office Software. Using Landsat-8 OLI’s imagery data analysis showed a good agreement with the global position system (GPS) surveying techniques for extraction of Baltim shoreline.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Application of Deterministic Lateral Displacement in Biological Cell Separation.1910272410.21608/bfemu.2020.102724ENAsmaaKhaterMansoura University Nanotechnology Center, EgyptMohamed NabilSabryMansoura University Nanotechnology Center, EgyptHossam S. S.AbdelMeguidMechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., El-Mansoura 35516., Egypt.Journal Article20140801<strong>Separation of cells is a crucial operation in most of microbiology tests. It is usually preformed using large sized devices (few tens of cm). In this work, cell separation using a microfluidic device based on Deterministic Lateral Displacement (DLD) is considered. DLD is a promising technique having many advantages, including in particular the fact that it can never be clogged. The device is composed of a micro-channel containing an array of obstacles (also called posts) adequately arranged such as to separate cells based on their size. Distances between posts are much larger than separation size, also called critical size, to prevent clogging. Critical size depends on many design parameters. Many successful designs were published. However, the relation between design parameters and critical diameter has never been systematically explored. Design parameters, geometrical and physical, are numerous. Revealing trends through experiments is impractical, since it requires a large number of cases as well as tedious work to discover relations out of obtained data. In this work, the problem is theoretically analyzed in order to understand the effect of different design parameters and to predict, at least to the first order, separation critical size. Numerous trends are revealed, concerning the effect of velocity, as well as different geometrical characteristics including post size and distances between posts. Finally, a correlation is built giving critical size as a function of dimensionless geometrical characteristics.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713A Comparison Study between 3-D CFD and Experimental Data of Butterfly Valve Coefficients.102210272510.21608/bfemu.2020.102725ENMohammed M.SaidGUPCO - Gulf of Suez Petroleum Co., 270 Palestine St. 4th Sector, New Maadi, Maadi, Cairo, EgyptHossamAbdelMeguidMechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., El-Mansoura 35516., Egypt.LotfyHassan Rabie SakrMechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.Journal Article20140702<strong>Computational fluid dynamics (CFD) enables scientists and engineers to perform ‘numerical experiments’ (i.e., computer simulations) in a ‘virtual flow laboratory’. Numerical simulation permits valve manufacture to determine valve sizing coefficients and to solve problems involving valves fluid flow. Valve designer via CFD could identify and eliminate valve flow problems before starting the manufacturing step. This technique is less costly alternative to determine the flow coefficients based on CFD calculations. Butterfly valves are versatile components widely used in hydraulic systems as shutoff and throttling valves. In this study, a comprehensive 3D simulation study for 2" (50 DN STC model) butterfly valve is conducted to establish a trusted and a calibrated numerical solution model after comparing with experimental data. The goal of this study is to verify and validate CFD code to obtain reasonable results for control valve coefficients calculation. The steady and incompressible Navier-Stokes equations are solved numerically to predict the flow behavior and compute the pressure loss, flow, and torque coefficients.</strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Controlling the Load Power Factor Automatically.1810272710.21608/bfemu.2020.102727ENM.AmmarElectrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.Saad Saad El-SayedEskanderProfessor of Electrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.A.ElmitwallyElectrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.A.ShahinElectrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.Journal Article20140605<strong>This paper focuses on the design and implementation of the automatic control system based on microcontroller that enhances the load power factor (PF) in real time. The system is designed to detect the load power factor and improve it automatically. The system is composed of a microcontroller which compares between the measured load power factor that is received from the energy metering integrated circuit (ADE7763) and a pre-stored value “PF = 0.95”. Based on the calculated difference in power factor, the microcontroller drives the power switches (relays circuit) through an interface circuits to choose the appropriate capacitor bank that is required to improve the power factor. Furthermore, the system is able to send the system power factor data in real time to clients either by a Short Message Service (SMS) through an integrated GSM module or by the World Wide Web (internet) through an Integrated Ethernet Module. </strong>Mansoura University, Faculty of EngineeringMEJ- Mansoura Engineering Journal1110-092339320200713Information Hiding in Video Files.91810272910.21608/bfemu.2020.102729ENHassan H.SolimanDepartment of Electronics and Communications engineering, Faculty of Engineering, El-Mansoura University, Mansoura, EgyptHossam E.MostafaDepartment of Electronics and Communications engineering, Faculty of Engineering, El-Mansoura University, Mansoura, EgyptEman A. E.AhmedDepartment of Electronics and Communications Engineering., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.Journal Article20140225<strong>Video Steganography is a technique that is used to transmit information by modifying video frames in an imperceptible manner and depending on the weakness of the Human Visual System (HVS) in distinguishing the simple differences between colored images. This paper is about embedding encrypted information (texts and gray images) which have been encrypted using RSA technique at sender side in video frames which are used as a cover. This embedding has been applied using two methods. The first is considered a parity Least Significant Bit (LSB) in the R - image (Red-image) of video frames and the second method was XORing of LSB for each pixel in the R - image (Red-image) of video frames and the bit next to it. The embedding has been applied in the frequency domain after applying Combined (Discrete Wavelet Transform - Discrete Cosine Transform) DWT-DCT Algorithm. First DWT2 for three times on each R-frame has been applied, then these transformations followed by DCT2 for HH3 band and quantization has been applied. The hidden data has been embedded in some coefficients in the middle sub-band. After embedding dequantization has been applied and the inverse for all the transformations has been applied in reverse order to get a frame again in the spatial domain. Stego video has been reconstructed then sentover data network to the receiver who can extract the secret encrypted message after implementing the same procedure then decrypt it using private key to get the secret message. The proposed system was tested using Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR) for different noise (salt and pepper) densities which have been added as a sort of effective attack that may change the secret message.</strong>